Added 10 October 2026 sandplain noun noun ! Definition from Wiktionary (CC BY-SA). More about sandplain at Wordnik → Where our words come from → An area whose surface consists of sand deposited from elsewhere by the wind or sea. Origin From sand + plain. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: sandbedsandflatsandsheetcoversandsandscapesandbeachsandurdesertscapesandstorm Back to today's word